A、They help the students to become more cooperative. B、They are very good entertainment for students. C、They make lots of money

America is a nation of sports fans. They learn sports as part of their education. They learn two or more ball games, such as football or basketball. At high school, they choose groups of boys or girls to make teams. They choose those who are best at that sport. These teams compete against teams from other schools. In many schools students also learn wrestling, running, tennis, golf and swimming. They have teams for some of these sports, too.
    The games between schools are often very exciting. Other students, the ones not on the team, love to watch them. They let everyone know this by shouting and cheering, when their team plays well. Such sports play a very important role in building the students’ team spirit, which could be very useful in their future career.
    There is a special club of girls and boys, mostly girls, who jump up and down and shout for their football team. They call themselves cheerleaders, because they lead everyone in shouts and cheers. They wear clothes of a special color—the color of their school’s team. The football players wear that color, too. Each school has a team color and a team name. Cheerleaders call out the team name in their cheers. They practice many hours to learn the special jumping and cheering moves. Cheerleading is almost a sport itself, and it is very enjoyable to both the players and the audience, who really need a moment to relax.